I think this is the problem. I run my synth via a USB isolator (to remove USB noise from the analogue audio) that drops some voltage. If I plug/unplug the Minilab, which is entirely USB powered, without the isolator...
Again, thanks very much for your help. The intermittent crashing when plugging in must be some timing/threading/race condition? issue. Having USB debug info doesn't help, it crashes before anything comes out to Serial....
Thanks very much for this. It works to ignore the CC data when plugging in and then takes CC data after. However, it's freezing and crashing when unplugging and plugging back in about 80% of the time - it's not...
Yes I want CC messages. I don't want the messages that get sent by some MIDI controllers when they get plugged in and start up - they're irrelevant. Perhaps I should mention that I'm taking MIDI in from USB Host, USB...
I'm using the callbacks. This approach doesn't work, there is data waiting on the buffer at the moment midi1.setHandleControlChange(...) is set. Also calling midi1.setHandleControlChange(...) again when the USB is...
I have a Teensy-based synth and when my MIDI controller is plugged-in to the T4.1 USB Host, it automatically sends several CC data messages that I want to ignore as it affects the settings on the synth. I can detect...
Hello, let's say there are four dc inputs of value 1 with various gains on a AudioMixer4 object, which sum to 4.6. Will the output produce 4.6 or is the output limited between -1.0 and 1.0? Thanks.
A circuit problem, probably. Can you check the pins on your circuit, they seem to differ from the datasheet actually:
https://www.sparkfun.com/datasheets/IC/cd74hc4067.pdf
24 is Vcc and 12 is GND on the datasheet....
This diagram looks fine. You are powering the CD74HC4067 with 5V but feeding it with 3V3 signals from Teensy on EN and S0-S3. Could this possibly not be enough? I wouldn't think so, but just a thought.
Does this...
I would recommend sitting through this 2 hour long Rick Hartley video for both hobbyist and professional PCB designers: https://www.youtube.com/watch?v=ySuUZEjARPY. It is the some of the best advice on grounding (an...
Hello, I've made a couple of Teensy based synths. One with a ST7735 and I'm currently working on one with a ILI9341. Yes, the problem is your circuit board, which will radiate and pick-up the digital noise massively....
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